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Cardio respiratory System Introduction Cardiorespiratory System Unit • • • • • • Cardiovascular System Heart Blood Pressure Exercise Diseases Respiratory System BROKEN HEART SYNDROME Is there such a thing a broken heart? Cardiovascular System Overview A ______ chambered muscular pump Located in the _______________________ Connected to an extensive system of blood vessels which brings _________ and __________ to all body cells and removes wastes Outputs ___________of blood per minute at rest The system maintains body temperature and appropriate fluid levels to prevent dehydration Vascular System • Arteries and arterioles – ______________________________________ • Capillaries – _______________________________________ • Veins and venules – _______________________________________ The Heart specialized muscle tissue called cardiac muscle or __________________ a muscle that requires _____delivery and ________________ it is the size of a fist (approximately) 250 – 300 grams considered a _______________________ _____ chambers ________________________________ ________________________________ The Heart __________side pumps deoxygenated blood (dark red) from ___________to the_______~ __________________________ _______ side pumps oxygenated blood (bright red) from the________to __________~ _________________________ Coronary Circulation – coronary arteries and veins supply and drain the myocardium Comparison of the Pulmonary and Systemic Circulation PULMONARY CIRCULATION Poorly oxygenated blood collects in the ______________________and the ________________________ The superior and inferior vena cava empty into the ______________ The ______________________(which brings blood back from the heart itself) also empties into the right atrium. The right atrium is the______________of the two atria although it receives the same amount of blood. The blood is then pumped through the ______________, or atrioventricular, valve into the __________________. The blood then is pumped through the pulmonary ______________ valve into the ____________________. This blood leaves the heart by ______________________and travels through the lungs (_____________________________) Then into the ________________________ SYSTEMIC CIRCULATION The oxygenated blood then enters the ________________. The blood then travels through the ____________________also called mitral or left atrioventricular valve, into the ______________________. The left ventricle is _______________ and more muscular than the right ventricle because it pumps blood at a ______________ pressure. Also, the right ventricle cannot be too powerful or it would cause ________________________in the lungs. From the left ventricle, blood is pumped through the semilunar valve into the __________________. The blood then flows to the __________________________ And the Process Will Continue the blood goes through peripheral tissues They will ________________________from the blood, which will again be collected inside the _______________and the process will continue. Peripheral tissues do not fully deoxygenate the blood, thus venous blood does have _________________only in a lower concentration in comparison to arterial blood. The release of oxygen from __________________is regulated. The diffusion of oxygen from red blood cells increases with an increase of carbon dioxide in tissues, increase in temperature, or a decrease in pH. Such characteristics are exhibited by tissues undergoing high metabolism, as they require increased levels of oxygen Erythrocytes and Hemoglobin • Bind and transport ______ and _______ in the blood – Amount of oxygen carried in blood depends on ________________________________(PO2) – __________ in lungs, hemoglobin binds easily to oxygen,_________at tissues, unbinds oxygen tissues • Protein made up of iron Next Up…. • Blood and Blood Pressure! • You will need to work through the handouts – The heart components – Systematic and pulmonary circulation – Blood vessels – Heart descriptions and functions – Vascular components worksheet